The artists studio I built a few years ago needed a new handrail and newel post.
Patricia had been given a large irregular billet of western maple. We both went at it with aggressive power tools. I used a small chainsaw to do the rough forming and Patricia used a power woodcarving chisel.
Patricia pulled an antique glass fishing net float out of deep storage and we incorporated at the top of the newel.
The handrail and guardrail are made of 1 1/2" diameter copper plumbing pipe. the connections and transitions I formed out of scraps from the original billet.